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Finding the Fourth Proportional to 289,263.80, 433,895.70 and 123,030.20

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Solution

The fourth proportional to 289,263.80, 433,895.70 and 123,030.20 is: 184,545.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,263.80 : 433,895.70 = 123,030.20 : x
  2. Step 2: Convert to fraction form
    289,263.80/433,895.70 = 123,030.20/x
  3. Step 3: Cross multiply
    289,263.80x = 433,895.70 × 123,030.20
  4. Step 4: Simplify right side
    289,263.80x = 53,382,274,750.14
  5. Step 5: Solve for x
    x = 53,382,274,750.14/289,263.80
  6. Step 6: Final answer
    x = 184,545.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.